ADJUSTABLE HIDDEN WEIGHTS JACKSPLATED GOLDFAST ACME THREADS, WHICH HOLD THE SPACER FIRMLY IN PLACE ONCE WEIGHT IS PLACED ON THEM, YET CAN BE TURNED BY HAND WITH NO WEIGHT ON THEMREADY TO INSTALLISOLATES SPRING FROM THREADS TO PREVENT THREAD CHAFINGALLOWS QUICK & EASY ADJUSTMENT OF RIDE HEIGHT1 1/2" OF ADJUSTMENT ALLOWING SPRING TO BE SPACED FROM 2" TO 3 1/2"MADE TO FIT 5" & 5 1/2" O.D. SPRINGS WITH AN I.D. OF AT LEAST 3 1/4"THE SPRING SEAT IS 7/8" WIDEALLOWS STOCK SHOCK TO BE USEDIF THE SHOCKS PASS THROUGH THE CENTER OF THE SPRINGS, THE O.D. OF THE SHOCKS CANNOT EXCEED 2 1/2"SPACERS ARE DESIGNED TO WELD TO THE CHASSISTHE PART THAT WELDS TO THE CHASSIS HAS A 4 1/2" O.D. & A 4 3/16" I.D.THE ONLY SURE-FIRE WAY TO DETERMINE IF THESE SPACERS WILL WORK FOR YOU IS TO TAKE THE MEASUREMENTS ABOVE & SEE IF THEY WILL WORK IN YOUR APPLICATION